Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Economic Geology
Type and genetic model of the Toryan sediment-hosted Pb–Zn occurrence, NW Zanjan

Negar Kaboudmehri; Hossein Kouhestani; Mir Ali asghar Mokhtari; Afshin Zohdi

Volume 32, Issue 1 , March 2022, , Pages 103-118


  The Toryan occurrence is located in the Central Iran zone, 120 km northwest of Zanjan. Pb–Zn mineralization at Toryan occurred as laminated and lens-shaped parallel to lamination of grey sandstone units of the Upper Red Formation. Mineralization often formed around and within the fragments of the ...  Read More

Economic Geology
Geochemistry and tectonomagmatic setting of volcanic rocks of Qoyjeh Yeylaq area (South of Qeydar), Zanjan Province

Hossein Bagherpour; Mir Ali Asghar Mokhtari; Hossein Kouhestani; Ghasem Nabatian

Volume 31, Issue 1 , June 2021, , Pages 51-62


  Qoyjeh Yeylaq volcanic rocks is located approximately in the 120 km southwest of Zanjan, within the Central Iranian zone. The rock units in this area belong to the Cenozoic which consist of mainly Oligo-Miocene volcanic (Basaltic- andesitic lavas) and sedimentary rocks. Based on geochemical classification, ...  Read More

Stratigraphy and Palaeontology
Neoprotrozoic-Cambrian boundary in Soltanieh Formation by the ichnological studies, Seyedkandi section, Soltanieh Mountains, NW Iran

Manizhe Famarini Bozchalouei; Nasrollah Abbassi; Armin Salsani; Afshin Zohdi

Volume 30, Issue 117 , December 2020, , Pages 163-174


  Soltanieh Formation comprises seven informal submembers as alternation of dolomites and shales, more than 1110 meters in thickness, was surveyed in the Seyedkandi section, 32 km southwest of Zanjan, northwest Iran. These submembers were subdivided as lower dolomite, lower shale, second dolomite, second ...  Read More

Economic Geology
Geology and genesis of Halab Mn deposit, SW Zanjan

Amir Naderi; Ghasem Nabatian; Maryam Honarmand; Hossein Kouhestani

Volume 29, Issue 115 , June 2020, , Pages 207-218


  Halab manganese deposit is located in the Sanandaj- sirjan zone, 100 km southwest of Zanjan. The rock units in the study area include Precambrian Kahar and Jangoutaran marble Formations. Manganese mineralization in the Halab area, occurred as veins and massive in the Jangoutaran marble and minor amount ...  Read More

Petrography, Geochemical and Sr-Nd isotope Character of granitoied bodies, West of Zanjan (North-West of Iran)

Leili Fathiyan; farhad aliani; ali akbar baharifar; mohamad hossein zarinkoub

Volume 28, Issue 112 , August 2019, , Pages 289-302


  Granitoid bodies of west of Zanjan with Precambrian age are located in northwest of central Iranian structural zone. Based on field observations and microscopic studies, these bodies contain tonalite, granodiorite and monzogranite. Tonalite are I-type, calc-alkaline, and peraluminous (206Pb/238U age ...  Read More

Economic Geology
Mianaj iron occurrence, southwest of Zanjan: Metamorphosed and deformed volcano-sedimentary type of mineralization in Sanandaj- Sirjan zone

Fattaneh Pourmohammad; Hossein Kouhestani; Amir Morteza Azimzadeh; Ghasem Nabatian; Mir Ali Asghar Mokhtari

Volume 28, Issue 111 , May 2019, , Pages 161-174


  Mianaj Fe ore occurrence is located in the Takab-Angouran-Takht-e-Soleyman metallogenic zone, 100 km southwest of Zanjan. In this area, Fe mineralization occurs as lens-shaped bodies parallel to the foliation of schist and rhyolitic meta-tuff units (equal to Kahar Formation). Based on mineralography, ...  Read More

Economic Geology
Tashvir ore occurrence, NE Zanjan: Intermeiate-sulfidation style of epithermal base metal (Ag) mineralization in the Tarom-Hashtjin zone

Hossein Kouhestani; Mir Ali Asghar Mokhtari

Volume 28, Issue 110 , December 2018, , Pages 97-108


  Tashvir ore occurrence, 75 km northeast of Zanjan, is located in the Tarom-Hashtjin subzone. Mineralization occurs as ore-bearing quartz vein-veinlets within the Eocene tuffs and andesitic lavas (equal to Karaj Formation). Ore minerals include chalcocite, chalcopyrite and galena, and quartz, calcite ...  Read More

Economic Geology
Geology, mineralization, mineralogy and genesis of Pirgheshlagh Cu-Zn-Pb deposit, NW Zanjan

Mahin Zolfaghari; Ghasem Nabatian; Amir Morteza AzimZadeh; Maryam Honarmand; P. Azizi

Volume 28, Issue 109 , September 2018, , Pages 133-148


  Pirgheshlagh Cu-Zn-Pb deposit is located in the Central Iranian zone, north-east of the Mahneshan in the Zanjan province. The Kahar Formation with Precambrian age is the oldest Formation in the area which cutted by the granitic dykes. The Pirgheshlagh Cu-Zn-Pb mineralization occurred mainly as tabular-shape ...  Read More

Sedimentary environment and sequence stratigraphy of the Routeh Formation in the west of Zanjan (Agh-Bolagh section)

Afshin Zohdi

Volume 27, Issue 108 , September 2018, , Pages 133-144


  In this study, for the first time stratigraphy and depositional history of the Routeh Formation have been evaluated in west of Zanjan (Agh-Bolagh section). These deposits with thickness of 102m consist of limestone, dolomitic limestone with the less frequency of thin-bedded calcareous shales. This sedimentary ...  Read More

Middle Jurassic biostratigraphy of plant macro and microfossils in Soltanieh Mountains, south of Zanjan, NW Iran

Fatemeh Vaez-Javadi; Nasrollah Abbassi

Volume 27, Issue 106 , March 2018, , Pages 91-102


  Jurassic deposits a section in south of Zanjan contain various taxa of macro and microfloras. Six plant macrofossil species belonging to five genera of various orders such as Equisetales, Cycadales, Bennettitales, and Pinales (Coniferales) are identified. This section contains seventeen species of palynomorphs ...  Read More

Petrology and geochemistry of the Aqkand acidic volcanic rocks and perlites, North of Zanjan

M Ebrahimi; H Kouhestani; M.A.A Mokhtari; M Feizi

Volume 26, Issue 101 , December 2017, , Pages 99-110


  The Aqkand area is located at 48 km north of Zanjan and is a part of the Tarom subzone within the Western Alborz-Azerbaijan structural zone. Acidic rocks exposed in this area consist of Oligocene rhyolite-rhyodacite, perlite, pitchstone and ignimbrite. Rhyolites and rhyodacites are exposed as domes and ...  Read More

Dolomitization model of the Soltanieh Formation in the south-west of Zanjan

A. Zohdi; F. Asemi; A. Lakirouhani

Volume 26, Issue 104 , September 2017, , Pages 17-28


  In this study, to determine a dolomitization model for the Soltanieh Formation a suitable outcrop 35 km southwest of Zanjan city has been studied. The Soltanieh Formation with a total thickness of 985 m sharply laid on the shales and sandstones of the Bayandor Formation and was covered by shales and ...  Read More

Epithermal Base Metal - Silver Mineralization at Gomish-Tappeh Deposit, Southwest of Zanjan

T Salehi; M Ghaderi; N Rashidnejad-Omran

Volume 25, Issue 97 , December 2016, , Pages 329-346


  Gomish-Tappeh Zn-Pb-Cu (Ag) deposit is located in northwestern part of Urumieh-Dokhtar volcano-plutonic zone, 90 km southwest of Zanjan. Exposed rocks at the area include Oligo-Miocene volcano-sedimentary and sedimentary sequences as well as Pliocene dacitic subvolcanic dome, rhyodacitic volcanics and ...  Read More

Investigation on type and origin of copper mineralization at Aliabad Mousavi- Khanchy occurrence, east of Zanjan, using petrological, mineralogical and geochemical data Mir Ali Asghar Mokhtari, Hossein Kouhestani*, Arefeh Saeedi

M.A.A Mokhtari; H Kouhestani; A Saeedi

Volume 25, Issue 100 , September 2016, , Pages 259-270


  Aliabad Mousavi- Khanchy Cu occurrence is located in the Tarom area, 30 km east of Zanjan. Rock units exposed in this area consist of Eocene volcanic and volcano-sedimentary units (equal to Karaj Formation) which are intruded by Oligocene quartz-monzonitic plutons. In this area, Cu mineralization occurs ...  Read More

Evaluation of geoheritage for development of geotourism in Takab area, Northwest of Iran

A Mohammadi; B Nekouie Sadri; S.S Hashemi; A Bayatani

Volume 25, Issue 99 , June 2016, , Pages 123-132


  In 21st century, geologists of the developed countries paid special attention to the usage of criteria for evaluation of geodiversity and introduction of the country’s geoheritage to conserve this valuable heritage and its usage in sustainable way. Conservation and utilization of geoheritage or ...  Read More

Mineralization, Mineralogy, Structure and Texture of Chehrabad Sedimentary Cu Deposit, Northwest of Zanjan

Z Bikdeli; M Ebrahimi; Gh Nabatian; M.A.A Nabatian

Volume 24, Issue 96 , September 2015, , Pages 249-262


  Chehrabad Cu deposit is located in the Zanjan province and in the northwest corner of Central Iran. Rock units exposed in this area belong to the Cenozoic era (especially Miocene period) and include the Lower Red Formation, Qom Formation, Upper Red Formation and Quaternary deposits. In the study area, ...  Read More

Thick- and Thin-Skinned Deformation of the Mahneshan Area, Zanjan, Northwest Iran

A Ahmadi-Torkmani; M.R Ghassemi

Volume 24, Issue 1393 , March 2015, , Pages 299-306


  The present research uses precise field data to provide a balanced cross-section of the Mahneshan area, and investigate nature of depth distribution of its major structures. Our structural studies indicate that the Mahneshan and Anguran faults are two major faults, which penetrate deep into the crust ...  Read More

Metalogenic Properties of Barik-Ab Pb-Zn (Cu) Ore Deposit with Acidic Tuff Host-Rock, west Central Alborz, Northwest of Iran

K. Bazargani-Guilani; M. Parchekani

Volume 20, Issue 78 , December 2011, , Pages 97-104


  Barik-Ab Pb-Zn (Cu) ore deposit located in 2 km for front Barik-Ab village in north of Abhar town, south eastern of Zanjan province. According to the geological classification of Iran , this area located in Taroum mountains and is a part of west Alborz range , Alborz-Azarbaidjan zone or west of central ...  Read More